Answer:
C
Explanation:
Height in humans is influenced by numerous loci and has a relatively smooth distribution. It is thus a quantitative or continuous trait.
A quantitative trait locus (QTL) is a DNA territory correlated with a specific phenotypic trait that differs in extent and can be linked to polygenic effects, i.e. the product of two or more genes, and their habitat.
Cell wall constituents polysaccharides nucleic acids
The answer to your question is Vegetative Propagation.
Vegetative Propagation is defined as a form of asexual reproduction of a plant. It occurs when only one "parent plant" is involved in producing an offspring that will be genetically identical to the parent.
Organ system is the answer